Chicago Cubs' Addison Russell sits out with sore shoulder

WASHINGTON -- Chicago Cubs infielder Addison Russell was not in the starting lineup against the Washington Nationals on Monday, one day after he left a game with a sore shoulder in Miami against the Marlins.

"He is not serious, but I don't want to push it," Chicago manager Joe Maddon said Monday after talking to team athletic trainer P.J. Mainville. "We just have to get him on a steady diet of rehab. We will play it a little bit cautious."

Russell is hitting .232 with seven homers and 29 RBIs in 228 at-bats in 68 games this season. Last year, he made the All-Star team and helped the Cubs win the World Series as he hit .238 with 21 homers and 95 RBIs.

Cubs outfielder Jason Heyward (left hand abrasion), who went on the disabled list June 22, took indoor batting practice Monday.

"It is getting better every day. It is healing. We will see what happens," Heyward said. He is hitting .258 with six homers and 29 RBIs.

Maddon said, "I know he is not 100 percent."

Infielder-outfielder Ben Zobrist (left wrist inflammation) continues to make progress. "No setbacks," Maddon said after Zobrist worked out Monday.

Chicago catcher Willson Contreras (.248) was in the starting lineup as the leadoff hitter Monday. He said it was the first time he had hit leadoff at any level of pro baseball.

Washington manager Dusty Baker said left fielder Jayson Werth, who has been on the disabled list since June 5 with a left foot contusion, may not return until after the All-Star break.

"I'm doing a lot better," Werth said. "It's kind of getting going, looking at a schedule, maybe playing some rehab assignment. I'm not quite there, but definitely improving. It was something I knew was going to take some time. I had something similar in the past but nothing this bad.

"This time was way worse, the MRI showed quite a bit of bone edema and we knew it was going to be four to six weeks."

Werth is hitting .262 with eight homers and 18 RBIs. He still can't put weight on the foot, Baker said.

"When it's ready, I'll be ready to go play, and it's just a matter of getting my legs in shape. It's nice definitely the team having a nice lead and all that, but I want to be on the field," Werth said. "You hate to put a date on it or a timeline on it. But we're getting close to getting on the field and running. It's progressing, it's coming along. It's just taking time."

The first-place Nationals entered Monday at 45-30 and the second-place Cubs were 38-37.